Figure | Working principle of Optical Singularity Protractor (OSinP). (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure | Working principle of Optical Singularity Protractor (OSinP).

Caption

Figure | Working principle of Optical Singularity Protractor (OSinP).  Foreshortened schematic of OSinP experimental setup: foreground rotating object and background neuromorphic camera. Arrows indicate rotation direction of the rotating object (with a foreground frosted prism as example). Rotation velocity of the rotating object is measured contactlessly by recording singularity trajectories (purple winding traces) of structured laser beams (transmitted purple light) via the background neuromorphic camera.

Credit

Jianping Ding et al.

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License

CC BY

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